One vertex per element, one color per generator, with an edge from x to x·s.
(2,6)(4,12)(7,13)(8,9)(10,16)(14,15)(17,18,21,24,22,25,20,29)(19,26,28,23,27,32,30,31)(1,2,5,9)(3,7,11,15)(4,8,12,6)(10,14,16,13)(19,27)(23,31)(26,32)(28,30)(1,3,5,11)(2,7,9,15)(4,10,12,16)(6,13,8,14)(17,19)(18,23)(20,30)(21,28)(22,27)(24,32)(25,31)(26,29)(2,8)(4,12)(6,9)(7,14)(10,16)(13,15) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.